Tube-number record
14EP4
0 archive entries
14EP4 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Tung-Sol, year 1950, construction Display / CRT, base Small Shell Duodecal, socket Duodecal, and maximum plate voltage 14000 V. The archive does not yet hold a photographed example of this type.
BrandTung-Sol
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular Glass Bulb
Base MaterialSmall Shell Duodecal
SectionsSingle
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 12000 V | — | — | — | — |
Application Notes
The 14EP4 is a rectangular glass picture tube intended for television receivers. It features a grey neutral-density faceplate for increased picture contrast and an external conductive coating that acts as a filter capacitor when grounded.
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